Transmission-gearing.



PATENTED FEB. 11

E; GRIBB, TRANSMISSION GBAR'ING.

APPLICATION FILED MAY 28, 1907.

luuentoz M I a W. W W

. ing, of which the following is a specification.

. withreference to the.accompanying drawchange speeds, and which, in its general con struction provides an improvement from '15- part gear casing 16, arranged upon one of the onrrnn s rrirrrrs PATENT onisron EDWARD (JRlBB. Of Sl'lBiifX Eli, OKLAHOMA.

TRANSMISSION-GEARING.

To all whom it may concern: I Be it known that l, Enw inn l3. (Warns, a citizen of the United States. residing. at l Shawnee, in the county of Potiawatoniie, Oklahoma, have invented certain new and useful Improvements inlTransmission-Gear- 5 My invention relates to av new and useful transmission gearing for. automobiles, and particularly. contemplates the provision of a simple and inexpensive frictional gearing whieh may he'quickly and easily operated. to I similar forms of gearing now in use.

My invention further resides in the features of'construction, arrangement ande omhination as will be hereinafter described.

ings, in which,

Figure 1 is a plan view of the mechanism comprising my invention, certain parts being shown in section. Fig. 2 is a vertical sectional view through the gear case showing the friction wheel and its shaft in elevation, and Fig. 3 'is a part sectional plan view of p arts to be hereinafter specifically referred to.

in the practical embodiment of my inven tion lemploy the parallel side frames 1 on which are mounted the boxes Transversely disposed between said frames 1 and having its ends slidahly mounted in open ings 3 in said boxes 2 is a friction. disk controlling arm. 4, provided. with rollers 5, engaging against the friction disk 6, mounted upon the end of the engine shaft 7, mounted through the arm t. The rollers 5 are operated to-bear against said friction dislr 6' to I force the same into frictional engagement with the friction wheel 8 by means of a reach rod 9, designed to operate levers 10 and 1.1, pivotally mounted in bearings 12- adjacent the boxes 2, and hearing at their ends upon adjusting pins 13, arranged through openings in said boxes 2, and bearing upon the ends of the controlling arm 4.

y The friction wheel 8 is keyed upon the friction wheel shaft- 14 to slide thereon under actuation of the shifting lever 15, across the face of the friction dish 6. The friction. wheel shaft 14 is mounted through the twoside frames '1, and provided with a short rotatable shaft 17 arranged therein parallel to Specification. of Letters Patent.

wheel 19 keyed on the short sh and sprocket wheel 21.

the shaft 14, and provided. with large and i small gears 18 and 19 keyed thereon.

connected by a. suitable sprocket cl driven shaft of the auton'iohile, andivitli'a. gear wheel 22 keyed thereon w thin the gea case 16, and arranged to mesh with the .17." gear 22 is further provide adapted to he clutch. ith' the of the sleeve 25, keyed on he frictionwheel shaft l i; to slide thereon underactuation "of the reach rod 26, and the bellrranlr 'leverQT, and provided with agear wheel 28, adapted to he meshed with the gear '18, ltjeyedonthe shortshaftlT. i

The operating reach rod), previously re 29, provided with a pin 30,farrangedthrough and working in the slotted ei "ls 31 and 32 of the levers 10 and 11., r631 rvelyfinorder that the upward. movement of said roll Q'Will rat-smas es 1.1311908, [I

Application filed May Z8. 1907. Serial No. 376,181. V

ferred to, is provided with abifurcated end move the said lovers to forcethe pins 13 against the arm l, in turn sliding said. ari'n within the transverse slots 3 in the boxes and forcing its rollers 5 against the friction disk 6 for the purpose previously mentioned,

The operation of thechange speed lniechanisni is as follows, it beingunders'toh'd that the friction wheel 8 may here adily i actuated over the face of the disk 6 by means of the shifting lever 1.5 and its connections: For a high speed, the reach rod 26 is operated to move the sleeve 25 to clutch the faces 23 and 24, thereby transmitting the power from shaft it through sleeve 25- to't-he sleeve 20 When, however, a low speed is desired, said reach rod is operated to reverse the previous movement of the sleeve 25, meshing gears 28 and 18, and thereby transmitting power from shaft 14 through sleeve 25, gear 28, gear 18, short shaft 17, gear 19, gear" 22', sleeve 20 and sprocket wheel 21.

From the foregoing it will be seen that I provide an extremely simple and efficient device.

Having thus fully described my invention 1 claim:

1. Ina friction gearing, the combination with the engine shaft and the friction disk mounted thereon, of a pair of side frames, a transverse shaft mounted therein, a friction Wheel secured upon said shaft, a slidingframe arranged in the rear of said friction disk, and levers for sliding said frame to force said dish into engagement with said with openings therethrough, a transverse a a sliding frame friction wheel, substantially as described.

2. In a friction gearing, the combination with the engine shaft and the friction disk mounted thereon, of side frames provided with transverse openings therein, a transverse shaft mounted Within said frames, a i friction wheel'secured upon said transverse shaft, a sliding arm mounted behind said friction disk in said transverse openings of said side frames, rollers carried by said arm, and contacting with the rear face of said disk, and a lever mechanism for sliding said frame to force said disk into 'en agement with said friction wheel, substantia ly as del scribed.

3. In a friction gearing, the combination with the engine shaft and the friction disk mounted thereon, of a pair of side frames, a transverse shaft mounted within said frames, a friction wheel keyed'on said shaft to slide thereon across the face of said friction disk,- arranged in the rear of said friction disk, and levers for sliding said frame to force said disk into engagement with said friction wheel, substantially as described.

4. In a friction gearing, the combination with the engine shaft and the, friction disk mounted thereon, of side frames provided shaft mounted in said frames, a friction wheel keyed on said shaft to slide thereon across the face of said friction disk, a slidingv arm mounted behind said friction disk within said. openings in said side frames, rollers carried by said arm and contacting with the rear face of said disk, and a lever mechanism )fOI sliding said frame to force said. disk iii 611- l s'raeii 'ga ement with said friction wheel, substantia ly. as described.

5. In a friction gearing, the combination 40 with the engine shaft and the friction disk mounted thereon, of side frames provided with openings 'therein,-a transverse shaft mounted in said side frames, a friction wheel keyed on said shaft to slide thereon across the face of said disk, a sliding frame mounted in the rear of said friction-disk, a lever inechanism for sliding'said frame to force said diskinto engagement with said friction wheel, a looselyniounted driving sleeve carried by 1 said transverse shaft, a sleeve keyed on said; shaft to slide thereon, said sleeves being formed with clutch faces upon their adjacent ends and means fr sliding said last named sleeve, substantial y as described. I 35, 6. In a friction gearing, the combination. with the side frames, the friction disk and. the engine shaft for driving said disk, of a transverse shaft mounted insaid frames, a friction wheel keyed on said shaft to slide 60, thereon, means for forcing said disk into engagement with said friction wheel, a loosely mounted sleeve carried by said transverse shaft, a sleeve keyed on said shaft to slide thereon, said sleeves being formed with. -5 clutch faces upon their adjacent ends, and means for. sliding said last named sleeve,

substantially as described.

In testimony whereof I affix my signature 11'1 presence of two witnesses.

- EDWARD B. CRIBB. Witnesses:

J. A. Domains, -W. M. PHELPS. 

